dridex | 8d72155fbc68c84def30cb46f0bea19057a0c3654a4020ebfd5597a6b254281f

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
17-08-2024 15:33

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General

Target

b9408e18184aed19db64f6bb56051720N.dll
Size

184KB
MD5

b9408e18184aed19db64f6bb56051720
SHA1

2035bc61754df3afda0e98c864265054186f4e21
SHA256

8d72155fbc68c84def30cb46f0bea19057a0c3654a4020ebfd5597a6b254281f
SHA512

3eb80eea59a8a2ef183357afc4f1aa8570d0dcec69a09dc708344da40b78451255107842f0977535c65433c5d43395c7a2e562ae42abcf4e362758586555fb94
SSDEEP

3072:SJQ6H3ykY88YOSs+k1TwEuTcMIznNuOzlr1Xznku9Luk0eJww8J8a//2uFrSc:TfYOX+wTScR/Xzku9LVwbuG

Score

10^/10

dridex 22201 botnet discovery loader

Malware Config

Extracted

Family

dridex

Botnet

22201

80.241.218.90:443

103.161.172.109:13786

87.98.128.76:5723

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

resource	yara_rule
behavioral1/memory/2324-1-0x0000000074810000-0x000000007483F000-memory.dmp	dridex_ldr
behavioral1/memory/2324-2-0x0000000074810000-0x000000007483F000-memory.dmp	dridex_ldr

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2760	2324	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 2324	1884	rundll32.exe	30
PID 1884 wrote to memory of 2324	1884	rundll32.exe	30
PID 1884 wrote to memory of 2324	1884	rundll32.exe	30
PID 1884 wrote to memory of 2324	1884	rundll32.exe	30
PID 1884 wrote to memory of 2324	1884	rundll32.exe	30
PID 1884 wrote to memory of 2324	1884	rundll32.exe	30
PID 1884 wrote to memory of 2324	1884	rundll32.exe	30
PID 2324 wrote to memory of 2760	2324	rundll32.exe	31
PID 2324 wrote to memory of 2760	2324	rundll32.exe	31
PID 2324 wrote to memory of 2760	2324	rundll32.exe	31
PID 2324 wrote to memory of 2760	2324	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9408e18184aed19db64f6bb56051720N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9408e18184aed19db64f6bb56051720N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 220
    3⤵
    - Program crash
    PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2324-0-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/2324-1-0x0000000074810000-0x000000007483F000-memory.dmp

Filesize
188KB

Download
memory/2324-3-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/2324-2-0x0000000074810000-0x000000007483F000-memory.dmp

Filesize
188KB

Download